Seems to me like any tall structure would be a deathtrap as a means of escape. If swarmed with say a horde, there's real no way to get away short of fighting your way out or disabling someone in the MAG to leave them for fodder, either way is a VERY bad idea. Only go higher if you have a plan for a way out, otherwise you're just signing your own death warrant. However as a form of recon it's an excellent idea and seems though the area as a whole in general is not a bad idea. You would also wanna be as far away from any population centers as possible. Though you post someone up in that tower with a suppressed marksman rifle and some form of alert system to those below(radio, bell, what have you) and you'd have a pretty good setup imho.